Based on the 2021 population projection conducted by the Central Statistical Agency of Ethiopia (CSA), the zone has a total population of 10,602,063 (in an area of 18,010.99 square kilometers (18,010.99 sq km). Gamo has a population density of 311.08 per square kilometer town main road A total of 337,199 households were counted in this Zone, which results in an average of 4.72 persons to a household, and 324,919 housing units. The largest ethnic groups reported in this Zone included the
Gamo people (64.61%), the
Gofa people (22.08%), the Oyda (2.35%), the
Amhara (2.32%), the
Welayta (1.91%), and the
Basketo (1.38%); all other ethnic groups made up 5.35% of the population.
Gamo is spoken as a first language by 63.75% of the inhabitants, 22.01%
Gofa, 3.47%
Amharic, 2.31%
Basketo, 1.83%
Oyda, and 1.74%
Welayta; the remaining 4.89% spoke all other primary languages reported. 53.41% of the population said they were
Protestants, 31.54% practiced
Ethiopian Orthodox Christianity, and 11.13% observed traditional religions. == Woredas ==